CN117467704B - 构建apod条件敲入小鼠模型的方法 - Google Patents
构建apod条件敲入小鼠模型的方法 Download PDFInfo
- Publication number
- CN117467704B CN117467704B CN202311800549.4A CN202311800549A CN117467704B CN 117467704 B CN117467704 B CN 117467704B CN 202311800549 A CN202311800549 A CN 202311800549A CN 117467704 B CN117467704 B CN 117467704B
- Authority
- CN
- China
- Prior art keywords
- apod
- seq
- nucleotide sequence
- primer
- constructing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000010172 mouse model Methods 0.000 title claims abstract description 25
- 108091033409 CRISPR Proteins 0.000 claims abstract description 20
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 20
- 230000014509 gene expression Effects 0.000 claims abstract description 12
- 238000010354 CRISPR gene editing Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 241000699670 Mus sp. Species 0.000 claims description 47
- 239000002773 nucleotide Substances 0.000 claims description 33
- 125000003729 nucleotide group Chemical group 0.000 claims description 33
- 239000012634 fragment Substances 0.000 claims description 22
- 238000012408 PCR amplification Methods 0.000 claims description 19
- 230000006801 homologous recombination Effects 0.000 claims description 15
- 238000002744 homologous recombination Methods 0.000 claims description 15
- 108020005004 Guide RNA Proteins 0.000 claims description 10
- 108020004999 messenger RNA Proteins 0.000 claims description 10
- 238000011746 C57BL/6J (JAX™ mouse strain) Methods 0.000 claims description 9
- 241000699666 Mus <mouse, genus> Species 0.000 claims description 9
- 238000003205 genotyping method Methods 0.000 claims description 6
- 235000013601 eggs Nutrition 0.000 claims description 5
- 238000010367 cloning Methods 0.000 claims description 3
- 239000001963 growth medium Substances 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000013518 transcription Methods 0.000 claims description 3
- 230000035897 transcription Effects 0.000 claims description 3
- 238000013412 genome amplification Methods 0.000 claims description 2
- 101150094024 Apod gene Proteins 0.000 abstract description 27
- 102100022954 Apolipoprotein D Human genes 0.000 abstract description 24
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 238000010171 animal model Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000003198 gene knock in Methods 0.000 abstract description 2
- 108020004414 DNA Proteins 0.000 description 7
- 238000001962 electrophoresis Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 108010025614 Apolipoproteins D Proteins 0.000 description 3
- 108091028043 Nucleic acid sequence Proteins 0.000 description 3
- 102000013933 Apolipoproteins D Human genes 0.000 description 2
- BPYKTIZUTYGOLE-IFADSCNNSA-N Bilirubin Chemical compound N1C(=O)C(C)=C(C=C)\C1=C\C1=C(C)C(CCC(O)=O)=C(CC2=C(C(C)=C(\C=C/3C(=C(C=C)C(=O)N\3)C)N2)CCC(O)=O)N1 BPYKTIZUTYGOLE-IFADSCNNSA-N 0.000 description 2
- 238000002944 PCR assay Methods 0.000 description 2
- RJKFOVLPORLFTN-LEKSSAKUSA-N Progesterone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 RJKFOVLPORLFTN-LEKSSAKUSA-N 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 102000009333 Apolipoprotein D Human genes 0.000 description 1
- 102000007592 Apolipoproteins Human genes 0.000 description 1
- 108010071619 Apolipoproteins Proteins 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- 108010010234 HDL Lipoproteins Proteins 0.000 description 1
- 102000015779 HDL Lipoproteins Human genes 0.000 description 1
- 102000019298 Lipocalin Human genes 0.000 description 1
- 108050006654 Lipocalin Proteins 0.000 description 1
- 102000004895 Lipoproteins Human genes 0.000 description 1
- 108090001030 Lipoproteins Proteins 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 208000025966 Neurological disease Diseases 0.000 description 1
- 235000011449 Rosa Nutrition 0.000 description 1
- 241000251539 Vertebrata <Metazoa> Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 230000002759 chromosomal effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000003209 gene knockout Methods 0.000 description 1
- 238000003208 gene overexpression Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002018 overexpression Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 229960003387 progesterone Drugs 0.000 description 1
- 239000000186 progesterone Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
- C12N15/8509—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells for producing genetically modified animals, e.g. transgenic
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/027—New or modified breeds of vertebrates
- A01K67/0275—Genetically modified vertebrates, e.g. transgenic
- A01K67/0278—Knock-in vertebrates, e.g. humanised vertebrates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/775—Apolipopeptides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2217/00—Genetically modified animals
- A01K2217/07—Animals genetically altered by homologous recombination
- A01K2217/072—Animals genetically altered by homologous recombination maintaining or altering function, i.e. knock in
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2227/00—Animals characterised by species
- A01K2227/10—Mammal
- A01K2227/105—Murine
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2267/00—Animals characterised by purpose
- A01K2267/03—Animal model, e.g. for test or diseases
- A01K2267/0331—Animal model for proliferative diseases
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2267/00—Animals characterised by purpose
- A01K2267/03—Animal model, e.g. for test or diseases
- A01K2267/035—Animal model for multifactorial diseases
- A01K2267/0356—Animal model for processes and diseases of the central nervous system, e.g. stress, learning, schizophrenia, pain, epilepsy
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2830/00—Vector systems having a special element relevant for transcription
- C12N2830/48—Vector systems having a special element relevant for transcription regulating transport or export of RNA, e.g. RRE, PRE, WPRE, CTE
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Genetics & Genomics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- General Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Wood Science & Technology (AREA)
- Molecular Biology (AREA)
- Environmental Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Veterinary Medicine (AREA)
- General Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Microbiology (AREA)
- Toxicology (AREA)
- Gastroenterology & Hepatology (AREA)
- Medicinal Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Animal Behavior & Ethology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Plant Pathology (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
本发明涉及构建APOD条件敲入小鼠模型的方法,属于动物模型构建技术领域。为解决现有研究APOD的小鼠模型不能用于准确的研究APOD在某一组织的功能的问题,本发明提供了构建APOD条件敲入小鼠模型的方法,通过CRISPR/Cas9技术在小鼠的Rosa26基因位点定点敲入CAG‑LSL‑Apod‑Wpre‑pA表达框。本发明实现了高效率基因敲入,构建了能够稳定表达APOD基因的小鼠模型。将其用于研究APOD在某一组织中的功能时,可以准确调控APOD的表达,提高了APOD功能研究结果的可靠性。
Description
技术领域
本发明属于动物模型构建技术领域,尤其涉及构建APOD条件敲入小鼠模型的方法。
背景技术
载脂蛋白D (Apolipoprotein D,Apo D)是一个分子量约为33kDa的糖蛋白,在人类中由APOD基因编码。它最初是在人血浆的高密度脂蛋白中被分离出来的,不同于其他主要在肝脏中产生的脂蛋白,Apo D主要产生于大脑和睾丸。Apo D在结构上与其他类型的载脂蛋白存在很大的差异,被归入脂肪促成素家族。
Apo D可以与胆固醇、黄体酮、胆红素等多种疏水性小分子结合。另外,Apo D在多种脊索动物的各类组织中广泛表达,揭示了Apo D在脊椎动物中重要的生理功能。最近的研究表明,Apo D可以作为多种癌症及神经系统疾病的早期诊断标记,因而备受关注。
目前对Apo D的研究集中在基因表达、组织分布和具体功能上。研究APOD的小鼠模型主要是常规的基因敲除或过表达,由于这两种方法是全身性调控APOD的表达,因此不能准确的研究APOD在某一组织的功能。
发明内容
为解决现有研究APOD的小鼠模型不能用于准确的研究APOD在某一组织的功能的问题,本发明提供了构建APOD条件敲入小鼠模型的方法。
本发明的技术方案:
构建APOD条件敲入小鼠模型的方法,通过CRISPR/Cas9技术在小鼠的Rosa26基因位点定点敲入CAG-LSL-Apod-Wpre-pA表达框;具体包括如下步骤:
步骤一、通过体外转录的方式构建小鼠Rosa26基因位点的Cas9 mRNA和gRNA;
步骤二、通过In-Fusion cloning的方法构建同源重组载体;
步骤三、将步骤一所得Cas9 mRNA、gRNA和步骤二所得同源重组载体共同注射到C57BL/6J小鼠受精卵中,获得F0代小鼠;
步骤四、对F0代小鼠进行基因型鉴定,将阳性F0代小鼠与C57BL/6J小鼠交配得到F1代小鼠,对F1代小鼠进行基因型鉴定,阳性F1代小鼠即为所述小鼠模型。
进一步的,步骤一所述gRNA的核苷酸序列如SEQ ID NO.1所示。
进一步的,步骤一所述Cas9 mRNA的核苷酸序列如SEQ ID NO.2所示。
进一步的,步骤二所述同源重组载体包括5’同源臂、CAG-LSL-Apod-Wpre-pA和3’同源臂;所述5’同源臂的核苷酸序列如SEQ ID NO.3所示,所述CAG-LSL-Apod-Wpre-pA的核苷酸序列如SEQ ID NO.4所示,所述3’同源臂的核苷酸序列如SEQ ID NO.5所示。
进一步的,步骤三所述注射到C57BL/6J小鼠受精卵的注射剂量为10 pl,培养基为KSOM,培养条件为37℃,5%CO2。
进一步的,步骤四所述对F0代小鼠和F1代小鼠进行基因型鉴定的方法是用PCR检测同源臂,所述PCR检测的引物为核苷酸序列如SEQ ID NO.6所示的引物1和核苷酸序列如SEQ ID NO.7所示的引物2,PCR扩增得到3.6kb片段表示5’同源臂含有阳性基因组,PCR扩增得到5.2kb片段表示5’同源臂含有阴性基因组。
进一步的,步骤四所述对F0代小鼠和F1代小鼠进行基因型鉴定的方法是用PCR检测同源臂,所述PCR检测的引物为核苷酸序列如SEQ ID NO.8所示的引物3和核苷酸序列如SEQ ID NO.9所示的引物4,PCR扩增得到3.6kb片段表示3’同源臂含有阳性基因组,PCR扩增得到6.5kb片段表示3’同源臂含有阴性基因组。
进一步的,对所述小鼠模型的基因型进行鉴定采用PCR扩增的方法,PCR扩增所用引物对包括核苷酸序列如SEQ ID NO.10所示的引物5和核苷酸序列如SEQ ID NO.11所示的引物6,以及核苷酸序列如SEQ ID NO.12所示的引物7和核苷酸序列如SEQ ID NO.13所示的引物8;PCR扩增得到的野生型基因片段大小为967bp,纯合子基因片段大小为346bp。
本发明的有益效果:
本发明提供的构建APOD条件敲入小鼠模型的方法,采用CRISPR/Cas9技术,通过同源重组的方法在小鼠的Rosa26基因位点定点敲入CAG-LSL-Apod-Wpre-pA表达框,实现了高效率基因敲入,构建了能够稳定表达APOD基因的小鼠模型。将其用于研究APOD在某一组织中的功能时,可以准确调控APOD的表达,提高了APOD功能研究结果的可靠性。
附图说明
图1为F0代小鼠和F1代小鼠基因型鉴定策略示意图;
图2为F0代小鼠双臂同源重组阳性的PCR鉴定电泳图,图中2表示F0代小鼠编号,wt表示野生型对照,M表示1kb DNA ladder;
图3为F1代小鼠双臂同源重组阳性的PCR鉴定电泳图,图中1、3、4、6、7、8表示F1代小鼠编号,wt表示野生型对照,M表示1kb DNA ladder;
图4为F1代小鼠基因型PCR鉴定电泳图,图中He均表示F1代小鼠,wt均表示野生小鼠,左图中M表示1kb DNA ladder,右图中M表示DL2000 DNA marker。
具体实施方式
下面结合实施例对本发明的技术方案做进一步的说明,但并不局限于此,凡是对本发明技术方案进行修改或者等同替换,而不脱离本发明技术方案的精神和范围,均应涵盖在本发明的保护范围中。下列实施例中未具体注明的工艺设备或装置均采用本领域内的常规设备或装置,若未特别指明,本发明实施例中所用的原料等均可市售获得;若未具体指明,本发明实施例中所用的技术手段均为本领域技术人员所熟知的常规手段。
实施例
本实施例提供了一种构建APOD条件敲入小鼠模型的方法,采用CRISPR/Cas9技术,通过同源重组的方式在小鼠Rosa26基因位点定点敲入CAG-LSL-Apod-Wpre-pA表达框。
本实施例构建APOD条件敲入小鼠模型的方法具体包括如下步骤:
步骤一、通过体外转录的方式构建小鼠Rosa26基因位点的Cas9 mRNA和gRNA。
本实施例小鼠为C57BL/6J小鼠,插入位点基因名称(Ensembl)为Gt(ROSA)26Sor(ENSMUSG00000086429),简称:Rosa26。插入位点染色体位置(Ensembl):Chromosome 6:113,076,031。根据Rosa26基因序列信息,设计了gRNA,gRNA的核苷酸序列如SEQ ID NO.1所示,具体为GGGGACACACTAAGGGAGCTTGG;Cas9 mRNA的核苷酸序列如SEQ ID NO.2所示。
本实施例中Cas9 mRNA和gRNA的核苷酸片段由上海南方模式生物科技股份有限公司合成制备。
步骤二、通过In-Fusion cloning的方法构建同源重组载体donor vector,该同源重组载体包括核苷酸序列如SEQ ID NO.3所示的3.3kb的5’同源臂、核苷酸序列如SEQ IDNO.4所示的CAG-LSL-Apod-Wpre-pA和核苷酸序列如SEQ ID NO.5所示的3.3kb的3’同源臂;
本实施例中5’同源臂、CAG-LSL-Apod-Wpre-pA和3’同源臂的核苷酸片段由上海南方模式生物科技股份有限公司合成制备。
步骤三、将步骤一所得Cas9 mRNA、gRNA和步骤二所得同源重组载体共同显微注射到C57BL/6J小鼠受精卵中,注射剂量为10 pl,培养基为KSOM,37℃、5%CO2条件下培养24小时后移植到代孕雌鼠中,获得F0代小鼠;
步骤四、对步骤三所得F0代小鼠进行基因型鉴定,鉴定策略如图1所示,基因型鉴定的方法是用PCR检测F0代小鼠的5’同源臂和3’同源臂是否含有阳性基因组。
5’同源臂PCR检测的引物核苷酸序列分别为:
SEQ ID NO.6所示的引物1:F-GGCGGGAGGTAGGTGGGGTGAGG;
SEQ ID NO.7所示的引物2:R-TGAGGGCAATCTGGGAAGGTT;
PCR扩增得到3.6kb片段表示5’同源臂含有阳性基因组,PCR扩增得到5.2kb片段表示5’同源臂不含有阳性基因组;
3’同源臂PCR检测的引物核苷酸序列分别为:
SEQ ID NO.8所示的引物3:F-GGGGGAGGGGAGTGTTGC;
SEQ ID NO.9所示的引物4:R-TTCTTCCTGCCTGCCTTCTGTGAC;
PCR扩增得到3.6kb片段表示3’同源臂含有阳性基因组,PCR扩增得到6.5kb片段表示3’同源臂不含有阳性基因组。
图2为本实施例F0代小鼠双臂同源重组阳性的PCR鉴定电泳图,图中2表示F0代小鼠编号,wt表示野生型对照,M表示DNA ladder;图2显示,F0代小鼠5’同源臂和3’同源臂均含有阳性基因组,表明F0代小鼠的Rosa26基因位点成功敲入了CAG-LSL-Apod-Wpre-pA表达框。
将阳性F0代小鼠与野生型C57BL/6J小鼠交配,繁育得到F1代小鼠,以引物1-引物4为扩增引物组,用PCR检测F1代小鼠的5’同源臂和3’同源臂是否含有阳性基因组。
图3为F1代小鼠双臂同源重组阳性的PCR鉴定电泳图,图中1、3、4、6、7、8表示F1代小鼠编号,wt表示野生型对照,M表示DNA ladder;图3显示,F1代小鼠5’同源臂和3’同源臂均含有阳性基因组,表明F1代小鼠的Rosa26基因位点成功敲入了CAG-LSL-Apod-Wpre-pA表达框。
对F1代小鼠进行基因型鉴定,采用PCR扩增的方法,PCR扩增所用引物核苷酸序列分别为:
SEQ ID NO.10所示的引物5:F-TCAGATTCTTTTATAGGGGACACA;
SEQ ID NO.11所示的引物6:R-TAAAGGCCACTCAATGCTCACTAA;
SEQ ID NO.12所示的引物7:F-TGTACTCCTGCACCACCTTC;
SEQ ID NO.13所示的引物8:R-TGAAAGCCATACGGGAAGCAA;
PCR扩增得到的野生型基因片段大小应为967bp,阳性基因片段大小应为346bp。
图4为F1代小鼠基因型PCR鉴定电泳图,图中He表示F1代小鼠,wt表示野生小鼠,M表示DNA ladder,图4显示,F1代小鼠得到了SEQ ID NO.14所示的967bp的野生型基因片段和SEQ ID NO.15所示的346bp的阳性基因片段,由此可见,阳性F1代小鼠即为成功敲入CAG-LSL-Apod-Wpre-pA表达框的小鼠模型。
Claims (6)
1.构建APOD条件敲入小鼠模型的方法,其特征在于,通过CRISPR/Cas9技术在小鼠的Rosa26基因位点定点敲入CAG-LSL-Apod-Wpre-pA表达框;具体包括如下步骤:
步骤一、通过体外转录的方式构建小鼠Rosa26基因位点的Cas9 mRNA和gRNA,所述gRNA的核苷酸序列如SEQ ID NO.1所示;
步骤二、通过In-Fusion cloning的方法构建同源重组载体,所述同源重组载体包括5’同源臂、CAG-LSL-Apod-Wpre-pA和3’同源臂;所述5’同源臂的核苷酸序列如SEQ ID NO.3所示,所述CAG-LSL-Apod-Wpre-pA的核苷酸序列如SEQ ID NO.4所示,所述3’同源臂的核苷酸序列如SEQ ID NO.5所示;
步骤三、将步骤一所得Cas9 mRNA、gRNA和步骤二所得同源重组载体共同注射到C57BL/6J小鼠受精卵中,获得F0代小鼠;
步骤四、对F0代小鼠进行基因型鉴定,将阳性F0代小鼠与野生型C57BL/6J小鼠交配得到F1代小鼠,对F1代小鼠进行基因型鉴定,阳性F1代小鼠即为所述小鼠模型。
2.根据权利要求1所述构建APOD条件敲入小鼠模型的方法,其特征在于,步骤一所述Cas9 mRNA的核苷酸序列如SEQ ID NO.2所示。
3.根据权利要求2所述构建APOD条件敲入小鼠模型的方法,其特征在于,步骤三所述注射到C57BL/6J小鼠受精卵的注射剂量为10 pl,培养基为KSOM,培养条件为37℃,5%CO2。
4.根据权利要求3所述构建APOD条件敲入小鼠模型的方法,其特征在于,步骤四所述对F0代小鼠和F1代小鼠进行基因型鉴定的方法是用PCR检测同源臂,所述PCR检测的引物为核苷酸序列如SEQ ID NO.6所示的引物1和核苷酸序列如SEQ ID NO.7所示的引物2,PCR扩增得到3.6kb片段表示5’同源臂含有阳性基因组,PCR扩增得到5.2kb片段表示5’同源臂不含有阳性基因组。
5.根据权利要求3所述构建APOD条件敲入小鼠模型的方法,其特征在于,步骤四所述对F0代小鼠和F1代小鼠进行基因型鉴定的方法是用PCR检测同源臂,所述PCR检测的引物为核苷酸序列如SEQ ID NO.8所示的引物3和核苷酸序列如SEQ ID NO.9所示的引物4,PCR扩增得到3.6kb片段表示3’同源臂含有阳性基因组,PCR扩增得到6.5kb片段表示3’同源臂不含有阳性基因组。
6.根据权利要求3所述构建APOD条件敲入小鼠模型的方法,其特征在于,对所述小鼠模型的基因型进行鉴定采用PCR扩增的方法,PCR扩增所用引物对包括核苷酸序列如SEQ IDNO.10所示的引物5和核苷酸序列如SEQ ID NO.11所示的引物6,以及核苷酸序列如SEQ IDNO.12所示的引物7和核苷酸序列如SEQ ID NO.13所示的引物8;PCR扩增得到的野生型基因片段大小为967bp,阳性基因片段大小为346bp。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311800549.4A CN117467704B (zh) | 2023-12-26 | 2023-12-26 | 构建apod条件敲入小鼠模型的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311800549.4A CN117467704B (zh) | 2023-12-26 | 2023-12-26 | 构建apod条件敲入小鼠模型的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN117467704A CN117467704A (zh) | 2024-01-30 |
CN117467704B true CN117467704B (zh) | 2024-03-26 |
Family
ID=89639921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311800549.4A Active CN117467704B (zh) | 2023-12-26 | 2023-12-26 | 构建apod条件敲入小鼠模型的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117467704B (zh) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109943593A (zh) * | 2019-03-28 | 2019-06-28 | 上海市中医老年医学研究所 | Mir3061基因Rosa26定点敲入杂合子小鼠模型构建方法与应用 |
CN111500639A (zh) * | 2020-04-15 | 2020-08-07 | 徐州医科大学 | Stat3线粒体定位条件性基因敲入小鼠模型的构建方法 |
-
2023
- 2023-12-26 CN CN202311800549.4A patent/CN117467704B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109943593A (zh) * | 2019-03-28 | 2019-06-28 | 上海市中医老年医学研究所 | Mir3061基因Rosa26定点敲入杂合子小鼠模型构建方法与应用 |
CN111500639A (zh) * | 2020-04-15 | 2020-08-07 | 徐州医科大学 | Stat3线粒体定位条件性基因敲入小鼠模型的构建方法 |
Non-Patent Citations (1)
Title |
---|
Apolipoprotein D modulates lipid mediators and osteopontin in an anti‑inflammatory direction;Makoto Kurano et al.;Inflammation Research;20221219;第第72卷卷(第第2期期);第264页左栏第3段至右栏第2段,第264页右栏第4段至第265页左栏第3段 * |
Also Published As
Publication number | Publication date |
---|---|
CN117467704A (zh) | 2024-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107858373B (zh) | 内皮细胞条件性敲除ccr5基因小鼠模型的构建方法 | |
WO2018177351A1 (zh) | 基于CRISPR/Cas9技术的制备无嵌合基因敲除动物的方法 | |
CN104404036B (zh) | 基于CRISPR/Cas9技术的条件性基因敲除方法 | |
CN110885858B (zh) | Amy1基因敲除小鼠动物模型的构建方法及应用 | |
US8709766B2 (en) | Use of endogenous promoters in genetic engineering of Nannochloropsis gaditana | |
CN106282231B (zh) | 粘多糖贮积症ii型动物模型的构建方法及应用 | |
CN109197781B (zh) | Aurka-cko1-n条件性基因敲除小鼠模型的构建方法 | |
CN110066323B (zh) | 微藻捕光蛋白NoHLR1基因及其应用 | |
CN110643636B (zh) | 一种团头鲂MSTNa&b基因敲除方法与应用 | |
CN110771573A (zh) | PirB基因敲入的小鼠动物模型及其构建方法 | |
CN113897369A (zh) | KRT10定点基因敲入P2A-CrePR1-T2A-tdTomato小鼠模型的构建及应用 | |
Kang et al. | Apancreatic pigs cloned using Pdx1-disrupted fibroblasts created via TALEN-mediated mutagenesis | |
CN114107382A (zh) | G3bp1条件性基因敲除小鼠模型 | |
CN117467704B (zh) | 构建apod条件敲入小鼠模型的方法 | |
CN110250108B (zh) | Rprm基因敲除小鼠模型及其构建方法与应用 | |
CN114457114B (zh) | 一种Fars2基因条件性敲除动物模型的构建方法 | |
CN112481301B (zh) | Stap2基因点突变敲入模式小鼠的打靶载体和构建方法 | |
CN112063654B (zh) | 一种点突变血小板无力症小鼠模型的构建方法 | |
CN109694885B (zh) | 基于CRISPR/Cas9技术制备PI3Kγ全身敲除模式小鼠方法及其应用和试剂盒 | |
CN103266102B (zh) | 一种小鼠Rtn4-A/B基因敲除方法 | |
US20240271164A1 (en) | Synthetic genomic safe harbors and methods thereof | |
CN113388639B (zh) | 一种基因敲入选育斑马鱼vmhcEGFP-KI品系的方法 | |
CN114891786B (zh) | 犬Rosa26基因及其应用 | |
CN116656681B (zh) | 一种cd34转基因模式小鼠的构建方法与应用 | |
CN113564205B (zh) | 一种平衡染色体动物模型的构建方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |